Chapter 30 vocab 2 Flashcards
smallest and closets planet to sun
Mercury
second closets planet to sun
Venus
third planet from the sun
Earth
fourth planet from the sun
Mars
how long ago did the solar system form
4.6 billion years ago
how was solar system created
nebula collapsed
what type of atmosphere does Mercury have
no true atmosphere
what type of atmosphere does Venus have
a dense atmosphere
what is the hottest planet in the solar system
Venus
what planet is referred to as Earths sister planet
Venus
due to the temperatures on Earth allow water to exist as
solid, a liquid, and a gas
what is Mars also called
red planet
why is Mars red
because of iron oxide
how many moons does Mars have
Phobos and Deimos
what does Phobos mean
FEAR
what does Deimos mean
PANIC!
what was Spirit’s and Opportunity’s mission
to find liquid water
what did Mars Reconnaissance discover
sediment layering and gullies
what did Mariner 9 discover
Valles Marineris (large canyon) and distinct volcanoes
what did Viking 1 and Viking 2 do
photographed the surface of mars
what did Global Surveyor do
examined the walls of Valles Marineris
what did the Odyssey do
provided evidence for water as frost beneath a thin layer of soil
what did Mars pathfinder and rover Sojourner gather
data that is iron in Mars crust may have been leached out by groundwater
where did Curiosity rover land
Gale Craters on Mars
